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Observations of pathogens on sugar maple seedlings. (a) Percentage of all experimental pots with observations of fungal pathogen on seedling stems and radicles as seen in (b). Percentage was calculated by counting the number of pots with infected seedlings present and dividing by the total number of pots containing seedlings in each site. Infection was present on living and dead seedlings. Letters indicate significant differences as in figure 2. (Online version in colour.)
